I. Equipment Overview

Our Organic Waste Gas Adsorption and Catalytic Integration Unit is a new type of energy-saving and non-secondary pollution waste gas treatment equipment developed based on our years of experience in waste gas treatment. It is mainly suitable for organic waste gases that are not suitable for direct combustion, catalytic combustion, or adsorption recovery methods, especially for large air volume, low concentration treatment scenarios, where it can achieve satisfactory treatment results.

II. Equipment Usage

Suitable for treating organic waste gases at normal temperatures with high air volume, medium to low concentration, and volatility, capable of handling organic solvents such as benzene, ketones, esters, aldehydes, ethers, alkanes, and their mixed gases.

III. Working Principle

Firstly, organic waste gas is treated with a dry filter to remove a portion of dust particles. Then, the organic waste gas that meets the adsorption criteria is sent to an activated carbon adsorption box for purification. The purified clean gas is exhausted into the atmosphere by the main exhaust fan. The adsorption unit is equipped with a spare adsorption box. Once the activated carbon becomes saturated, the control valve switches to the catalytic combustion desorption state. The desorption and regeneration system uses online desorption regeneration (offline desorption regeneration can also be used), which is a continuous treatment process during the adsorption. While the spare adsorption unit is in use, the saturated adsorption box undergoes desorption. After desorption, the activated carbon box is ready for the next cycle.

Section 4: Product Features

1. Utilizing a combination of adsorption concentration and catalytic oxidation process, the entire system achieves a closed-loop purification and desorption process. Compared to organic waste gas purification units that recover, it does not require additional energy sources such as compressed air and steam, and does not generate secondary pollution during operation. It features low equipment investment and operational costs.

2. The front end features a dry dust filtration unit, offering high purification efficiency and ensuring the longevity of the adsorption unit.

3. Utilize special-shaped honeycomb activated carbon as the adsorbent material, featuring a long service life of the adsorbent, low resistance in the adsorption system, and high purification efficiency.

4. Utilizing palladium and platinum-plated honeycomb ceramic as catalysts, the catalytic purification achieves satisfactory results. The catalyst has a long service life, low decomposition temperature for waste gas, short desorption preheating time, and low energy consumption.

5. Activated carbon adsorption beds for organic waste gas adsorption, capable of recycling heat gas after catalytic combustion for desorption and regeneration. The desorbed gas is then sent to the catalytic combustion chamber for purification. When the organic waste gas concentration reaches above 2000 PPM, self-combustion can be maintained. No external energy is required, with low operation costs and significant energy-saving effects.

6. Utilizing a microcomputer centralized control system, equipment operation and process are fully automated, ensuring stable and reliable performance.

7. Equipped with comprehensive safety facilities, safety shut-off valves are installed between the gas source and equipment. Desorption temperatures to the activated carbon beds are strictly controlled during the desorption process. Fire arrester, temperature sensor rods, explosion-proof openings, alarms, and automatic shutdown are all in place for protection.

Main Technical Parameters of the Catalyst Bed

Description:

1. The inner lining of the catalytic bed is made of stainless steel, while the outer shell is made of carbon steel.

2. Insulation material is made of alumina silicate refractory fiber.

3. Equipment dimensions are subject to actual measurements.

Key Technical Parameters of Activated Carbon Adsorption Beds

Description:

1. The adsorption material uses honeycomb activated carbon.

2. Equipment dimensions are subject to the actual measurements.

Main Technical Parameters of Bag Filters

Activated Carbon Adsorption + Catalytic Oxidation (CO) Technology

I. Overview

Utilizing a combination of honeycomb activated carbon adsorption and catalytic oxidation technology, the entire system achieves a sealed and cyclic purification and desorption process. This technology is suitable for low-concentration organic waste gases that are not suitable for direct combustion or catalytic combustion methods, and those that do not require adsorption and concentration recovery treatment. It is particularly effective for high-volume treatment applications, delivering satisfactory results.

Compared to recycling-type organic waste gas purification equipment, there's no need for additional energy like compressed air and steam, nor the need for supplementary equipment such as cooling towers. The operation does not produce secondary pollution, resulting in lower equipment investment and operational costs.

TwoTechnical Principle

Activated carbon adsorption combined with catalytic oxidation (CO) technology employs a three-step process of activated carbon adsorption, thermal gas desorption, and catalytic oxidation to purify organic waste gases. Utilizing the characteristics of activated carbon's many micropores and significant surface tension, organic solvents in the waste gases are adsorbed, resulting in purified emissions in the first stage. Once the activated carbon is saturated, the adsorbed organic solvents are desorbed using thermal gas at a certain concentration ratio and sent to the catalytic combustion bed in the second stage. The high-concentration organic waste gases entering the catalytic combustion bed are further heated and, under the action of the catalyst, oxygen is decomposed, converting to CO2 and H2O. The heat released during the decomposition is recovered by a heat exchanger and used to preheat the high-concentration organic waste gases entering the catalytic combustion bed in the third stage. After a certain operating time, these three processes achieve self-balancing, and desorption and catalytic oxidation decomposition do not require external energy for heating.

Based on the emission volume of organic waste VOCs, two or more adsorption beds can be alternately switched for adsorption use. This way, the continuous operation of multiple adsorption beds can achieve high-volume continuous purification.